← View Generic P0940 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0940: P0940: Transmission Advanced System - Pressure Control Solenoid 'A' Performance

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
⚠️

Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P0940 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The transmission control module (TCM) has detected a problem with the pressure control solenoid 'A' performance, which is responsible for controlling the transmission's hydraulic pressure.
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Symptoms

  • • Transmission slipping
  • • hesitation
  • • or hesitation during acceleration
  • • delayed engagement of gears
  • • or a 'check engine' light on the dashboard.
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Common Causes

  • • Faulty pressure control solenoid 'A'
  • • clogged transmission filter
  • • low transmission fluid level
  • • or a malfunctioning transmission control module.
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How to Fix P0940 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the transmission fluid level and top it off if necessary. 2. Inspect the transmission filter and replace it if clogged. 3. Test the pressure control solenoid 'A' and replace it if faulty. 4. Update the transmission control module's software if necessary.

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Need Maintenance Info for Your SILVERADO 1500 PICKUP?

Get oil capacity, filter specs, and torque settings for your specific 2020 Chevrolet SILVERADO 1500 PICKUP.

View 2020 Chevrolet SILVERADO 1500 PICKUP Specs

Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Transmission filter Shop ↗ Pressure control solenoid 'A' Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with P0940

P0938 Sequential Code

P0938: Transmission Range Sensor Circuit Malfunction

Medium
P0939 Sequential Code

P0939: Transmission Range Sensor Circuit Malfunction

Medium
P0941 Sequential Code

P0941: Transmission Range Sensor Circuit Malfunction

Medium
P0942 Sequential Code

P0942: Transmission Advanced System - Pressure Control Solenoid 'A' Performance

Medium

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system